chore(deps): update docker/build-push-action action to v7

Author: renovate[bot]

.github/workflows/docker-nightly.yml

@@ -77,7 +77,7 @@ jobs:
           password: ${{ secrets.DOCKER_PASSWORD }}
 
       - name: Build ${{ env.APP_NAME }}
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           file: docker/${{ env.APP_NAME }}/Dockerfile

.github/workflows/docker-release.yml

@@ -88,7 +88,7 @@ jobs:
           password: ${{ secrets.DOCKER_PASSWORD }}
 
       - name: Build ${{ env.APP_NAME }}
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           file: docker/${{ env.APP_NAME }}/Dockerfile